Acanthamoeba Keraitis Flashcards
1
Q
What causes acanthamoeba keratitis (river blindness)
A
Free living protozoan, amebic parasite that lives in polluted water
2
Q
Who is at risk of acanthamoeba keratitis
A
- Contact lens user
- Homemade saline solution
- Contaminated water, lakes
3
Q
What are the signs of acanthamoeba keratitis
A
- Severe eye pain
- Rings are confined to corneal epithelium
*late = peri-neural, ring infiltrate in the corneal stroma
4
Q
What needs to happen of a patient presents with acanthamoeba keratitis
A
Emergent refferral for ophthalmology consultation
1. Corneal scrapings via Giemsa staining and culture
5
Q
What is the treatment of AK
A
- Topical biguanides and corticosteroids
- Oral miltefosine
- Debridement
6
Q
What is the treatment if there is sclera involvement
A
Systemic anti-inflammatory therapy necessary
